Snow wing for motor graders



March 22, 1966 R. M. ULRICH snow wme FOR MOTOR GRADERS 3 Sheets-Sheet 1Filed Jan. 17, 1964 March 22, 1966 R. M. ULRICH snow wme FOR MOTORGRADERS 3 Sheets-Sheet 24 Filed Jan. 17, 1964 IN VEN TOR.

March 22, 1966 ULRICH 3,241,254

SNOW WING FOR MOTOR GRADERS Filed Jan. 17, 1964 3 Sheets-Sheet 5 I l l ll I 1 11a BY 4W4 M W Q4 44(W%6 United States Patent Office 3,241,254SNQW WING FGR MOTOR GRADERS Raymond M. Ulrich, Ulrich Mfg. (10.,Roanoke, ill. Find Jan. 17, 1964, Ser. No. 338,394 8 Claims. (Cl. 37-44)The present invention relates generally to a snow moving wing member andmore particularly to a snow moving wing member assembly especiallyadapted for attachment to and use with a conventional motor grader.

At the present time, it is conventional practice to attach a V-plow tothe front end of a motor grader for use in removing snow from roadways.Such front end snow plows have several shortcomings. First, since theirtransverse extent does not substantially exceed the width of the motorgrader, such plows, when clearing snow from the road in a lane adjacentthe edge thereof, deposit snow at the immediate edge of the road on theroad shoulder. This is undesirable because the melting snow softens theroad bed. Secondly, driving the motor grader along the road shoulder toclear the snow therefrom with a front end snow plow is objectionablebecause the weight of the motor grader and the bite of the tires inmaintaining traction tends to loosen and shift the gravel of theshoulder and to break up the edge of the road thereby damaging the roadand road bed. Thirdly, a front end plow is ineffective in cutting backhigh snow banks at the side of the road.

It is an object of the present invention to provide a snow moving wingmember which may be mounted at the side of a motor vehicle in agenerally laterally extending position and which is operable to clearroad shoulders of snow while the vehicle remains on the road surface.

It is another object of the present invention to provide a snow movingwing member which may be mounted at the side of -a motor vehicle in agenerally laterally extending position and which is operable to cut backhigh snow banks.

It is a further object of the present invention to provide a snow movingwing member, as described, which may be attached to the adjustablecircle frame means of a motor grader and scraper blade carried thereby,whereby the working position of the wing member may be controlled by thepositional adjustments of the circle frame means and scraper blade.

It is a still further object of the present invention to provide a snowmoving wing member, as described, which is pivotally connected at oneend to one end of the scraper blade of the motor grader and whereinadjustable brace means interconnects the wing member and the motorgrader circle frame means so that the angular position of the wingmember relative to the scraper blade may be selectively varied.

It is a feature of the present invention that the snow moving wingmember and motor grader scraper blade can together serve as a wideV-plow for clearing light accumulations of snow.

It is a further feature of the present invention that the snow movingwing member may be used in conjunction with a conventional V-plowmounted at the front end of a motor grader, with the wing member beingpositionally adjusted with respect to the front end plow, so that itwill guide and keep moving the snow as it leaves the adjacent side ofthe plow, thus depositing snow at a greater lateral distance from themotor grader than would otherwise be the case.

Now in order to acquaint those skilled in the art with the manner ofconstructing and using devices in accordance with the principles of thepresent invention, there will be described in connection with theaccompanying drawings a preferred embodiment of the invention.

3,241,254 Patented Mar. 22, 1966 In the drawings:

FIGURE 1 is a partial plan view of a conventional motor grader havingmounted thereon a conventional snow plow and the snow moving wing memberassembly of the present invention;

FIGURE 2 is a perspective view of the motor grader, snow plow and wingmember assembly of FIGURE 1;

FIGURE 3 is a view, on an enlarged scale, of the Wing member assembly ofthe present invention, taken substantially along the line 3-3 of FIGURE1, looking in the direction indicated by the arrows;

FIGURE 4 is a view, on an enlarged scale, of the wing member assembly ofthe present invention, taken substantially along the line 44 in FIGURE1, looking in the direction indicated by the arrows;

FIGURE 5 is a fragmentary side elevational view, on an enlarged scale,of the intermediate portion of the motor grader of FIGURE 1, takensubstantially along the line 5-5 in FIGURE 1, looking in the directionindicated by the arrows; and

FIGURE 6 is a fragmentary transverse sectional view, taken substantiallyalong the line 6-6 in FIGURE 5, looking in the direction indicated bythe arrows.

Referring now to FIGURES 1 and 2, there is indicated generally by thereference numeral 10 a conventional motor grader, upon which is mounted,at the forward end thereof, a conventional snow plow 12 and, at the sidethereof, the snow moving wing member assembly or attachment of thepresent invention indicated generally by the reference numeral 14.

The motor grader 10 represents one embodiment of motor grader with whichthe Wing member attachment 14 may be incorporated. It comprises a mainframe structure 16 supported at its front end on steering wheels 18 andat its rear end on driving wheels 20. Suitably supported on the framestructure 16 adjacent the rear end thereof is an operators cab 22 and aninternal combustion engine 24. The engine 24 serves to drive the reardriving wheels 20 and the accessories, such as the oil pump of thehydraulic control system, of the motor grader 19.

Located under the frame 16 intermediate of the front wheels 18 and therear wheels 20 is a conventional scraper blade 26 which serves tosupport the wing member assembly 14, and which is so mounted andconnected with the frame 16 as to be capable of a wide variety ofpositioning adjustments. As will be presently described in detail, thescraper blade 26 may be rotated about a substantially vertical axiswhereby its angular position relative to the lengthwise axis of themotor grader 10 may be varied. Also, the scraper blade 26 may be shiftedendwise so as to enable either end of the blade to be projectedoutwardly to a greater or lesser distance to either side of the frame16. In addition, scraper blade 26 may be tilted about a horizontal axisextending substantially longitudinally of the motor grader 10 so thateither end of the scraper blade 26 can be tilted upwardly or downwardlyas desired. Still further, the scraper blade 26 is arranged to be raisedand lowered selectively to vary the distance between the lower edge ofthe blade and the adjacent ground, and to effect movement of the bladeto an elevated inoperative position. Finally, the scraper blade 26 maybe rotated about its own lengthwise axis whereby to incline the upperedge thereof forwardly or rearwardly with respect to the lower edge.These positioning adjustments of the scraper blade 26 are utilizedduring mounting of the wing member attachment 14 to the blade and ineffecting adjustments of the attachment 14 in various working positions.

The adjusting mechanisms that are provided for effecting the positionaladjustments of the scraper blade 26 will now be described. Referring toFIGURES 1, 5 and 6, it will be seen that the scraper blade 26 is carriedby a so-called circle frame 28. The circle frame 28, which includes aring-like member 27 formed with internal gear teeth 30, is rotatablymounted at its center on a gooseneck or A-frame 32 adjacent the rear endthereof. The forward end of the A-frame 32 is connected by means of aball and socket joint assembly 34 to the front portion of the graderframe 16. This forward end mounting of the A-frame 3'2 permits universalmovement of the rear end of the A-frame together with the circle frame28 and the scraper blade 26 carried thereby.

The mechanism for raising and lowering the rear end of the A-frame 3 2,the circle frame 2 8 and the scraper blade 26 comprises two horizontalparallel control shafts 36 and 38 which carry at their forward endscrank arms 40 and 41 having universal joint pivotal connections at 42and 43 with the upper ends of adjustable links 4-4 and 46. The lowerends of the links 44 and 46, in turn, have universal joint pivotalconnections at 48 and 49 with the outer ends of the transverse rearcross bar 5'0 of the A-f-rame 3 2. The rear ends of the control shafts36 and 38 enter housings 52 at the operators cab 22 and are adapted tobe selectively driven in either direction by ongine power throughselective clutching operations performed in the housings in response tothe manipulations of suitable control levers within the operators cab22. Thus, if it is desired to raise or lower the scraper blade 26, withthe latter remaining in a horizontal position or at a set angle, theselective rotation of the two control shafts 36 and 3 8 will swing theirassociated crank arms 40 and 41 either upwardly or downwardly to raiseor lower the scraper blade as desired. Additionally, if it is desired totilt the scraper blade 26, that is, for example, to raise the left handend thereof (as viewed in FIG- URE 6), either one or both of the controlshafts 36 and 38 may be rotated in a clockwise direction which will,through the crank arms 411 and 41 and the adjustable links 44 and 46,effect clockwise tilting movement of the A- frame 32, the circle frame28 and the blade 26. Similarly, counter-clockwise tilting movement ofthe scraper blade 26 may be effected by rotating one or both of thecontrol shafts 36 and 3 8 in a counter-clockwise direction.

Side shifting of the scraper blade 26 in either direction is adapted tobe effected by means of a side shift rack 54 in the form of a sectorgear 56 of relatively large radius which is suitably supported by theframe 16 for rotative movement above the rear portion of the A-frame 32and circle frame 28. Meshing with the sector gear 56 is a pinion 58secured to the lower end of a vertical shaft 60 that has connection,through worm gearing within a housing 62, with a drive shaft 64. Thedrive shaft 64 is adapted to be operatively connected with a reversibleclutching drive adjacent the operators cab 22 in response tomanipulation of a control lever. The lower rim of the rack 54 has one ormore apertures 66 therein for selectively mounting a ball stud 68 whichestablishes a universal pivotal connection with the upper end of anadjustable link 70 extending diagonally downwardly to a universalpivotal connection 72 with one end of the A-frame cross bar 50. By powerdriving the pinion 58 in either direction the sector gear 56 can beswung to the right or the left for imparting a correspOnding swingingmovement through the adjustable link 70 and the A- frame 32 to thecircle frame 2 8 and the scraper blade 26. In this manner, either end ofthe scraper blade 26 can be displaced outwardly to a substantialdistance beyond the pormal position of the scraper blade under thegrader frame 16.

The above-described mechanism for raising, lowering and tilting thescraper blade 26, which includes the crank arms 40 and 41 and thesuspension links 44 and 46, and likewise the mechanism for side shiftingthe scraper blade, which includes the sector gear 56 and pinion 58,

4 are of conventional construction as exemplified in Gustafson PatentsNos. 2,189,286 and 2,258,890.

As best illustrated in FIGURES 5 and 6 the circle frame 28 includes apair of downwardly extending curved supporting arms 74, and the means bywhich the scraper blade 26 is suspended from the circle frame 28comprises a guide tube 76 secured in the lower ends of the supportingarms 74. Mounted for sliding movement in the guide tube 76 is a guiderod 78 having its projecting ends anchored to the back of the scraperblade 26 by means of lugs 80. Adjacent to the upper edge of the scraperblade 26 is another guide rod 82 which has slidable movement within anupper guide tube 84 and which is anchored at its projecting ends to theback of the scraper blade 26 by means of lugs 85. The upper guide tube84 is interconnected with the curved supporting arms 74 throughconventional blade tipping or pitch adjusting mechanism 86 (FIGURE 5)comprising serrated adjusting arms or members 88 attached to the ends ofthe upper guide tube 84, and having corrugations 96 along the loweredges thereof and vertical slots 92 lengthwise thereof. Eye bolts 94 aresuitably secured to the supporting arms 74, and the serrated arms 88 areadjustably fastened to the eye bolts 94 by bolts 96 that extend throughthe slots 92 in the arms 88. This adjusting mechanism 86 permits theupper edge of the scraper blade 26 to be inclined forwardly orrearwardly with respect to the lower edge thereof without affecting theoffset sliding adjustment of the blade endwise with respect to thesupporting arms 74. The afore-described blade pitch adjusting mechanismis fully disclosed in Wilson et al. Patent No. 2,195,607.

Sliding offset adjustment of the scraper blade 26 is effected by meansof a double acting hydraulic piston and cylinder assembly 98 disposedhorizontally intermediate of the supporting arms 74. The hydraulicassembly 98 comprises a cylinder 1% in which is slidably mounted apiston 102 secured to the inner end of a piston rod 104 that extendsoutwardly of the cylinder 180. The closed end of the cylinder inanchored by means of a universally tiltable joint connection 166 to theadjacent supporting arm 74, and the outer end of the piston rod 104 isanchored by means of a universally tiltable joint connection 108 to thebackside of the scraper blade 26. Admission of hydraulic fluid underpressure to either end of the cylinder 160 is operative to effect theoffset side shifting of the scraper blade 26 in either directionrelative to the A-frame 32 and circle frame 28. The above-describedblade offset mechanism is fully disclosed in the aforesaid Wilson et a1.Patent No. 2,195,607 and in Leliter Patent No. 2,799,099.

The mechanism for rotating the circle frame 28 relative to the A-frame32, in any of its raised, lowered, tilted or shifted positions,comprises a power driven pinion 110 which meshes with the internal gearteeth 30 of the circle member 29. Such rotating mechanism is fullydisclosed in the aforesaid Gustafson Patents Nos. 2,189,286 and2,258,890.

Having completed a description of the motor grader 10, there will now bedescribed the construction and operation of the snow moving wing memberassembly 14 of the present invention. As shown in FIGURES 1 and 2, thewing member assembly 14 comprises a snow moving wing member 112pivotally mounted at its one end to one end of the scraper blade 26. Thewing member 112 is curved about a lengthwise axis to present a concaveforward surface. In this connection, the general radius of curvature ofthe inner end of the wing member 112 is smaller than the general radiusof curvature of the outer end thereof, and the wing member 112 is formedwith upper and lower edges diverging in a direction moving away from thepivotal mounting thereof. The wing member 112 preferably is fabricatedof metal plate, which is suitably reinforced along its backside, and isprovided along its lower edge with a bit or blade 114. The means forpivotally mounting the wing member 112 to the scraper blade 126 includesa hinge element 116 suitably secured, as by welding, to the backside ofthe wing member 112, and a cooperating hinge element 118 secured, as bybolt and nut assemblies 120, to the backside of the adjacent end of thescraper blade 26. The hinge elements 116 and 118 are provided withalternating interfitting tubular portions through which a hinge pin 122is disposed for pivotally interconnecting the hinge elements.

The wing member assembly 14 further comprises, as shown in FIGURE 4, anA-frame structure 124 which includes a normally horizontal tubular legportion 126, a normally inclined upper leg portion 128, and a normallyvertical leg portion 130. Slidably received in the horizontal tubularleg 126 is an adjustable telescopic brace member 132. The brace member132 is formed with a plurality of vertical lengthwise spaced openings133 any one of which is adapted to be selectively aligned with a set ofopenings formed in the walls of the adjacent end of the horizontal leg126 for receiving a lock pin 134. The end of the brace member 132projecting outwardly of the horizontal leg 126 is provided with a yokeportion 136 that is engaged about the flange portion of a bracket 138secured, as by a U-bolt 139, to the circle frame guide tube 76 (FIGURE6). The yoke 136 is pivotally connected to the bracket member 138 bymeans of a lock pin 140. The ends of the horizontal leg 126 and inclinedleg 128, opposite the brace member 132, are provided with yokes 142 and144 respectively.

Projecting substantially perpendicularly from the backside of the wingmember 112, intermediate of the ends thereof, is a vertical bracketmember 146. Secured to the one side of the bracket 146 and to thebackside of the wing member 112 are a pair of vertically spacedhorizontal flange members 148 and 150. Overlying the upper flange member148 is an ear plate 152 which is formed with a pair of openings that arevertically aligned with a pair of slots 153 formed in the flange member148. Disposed through the aligned openings and slots for securing theflange 148 and plate 152 together are a pair of bolts 154 on the lowerends of which are threaded nuts 156. When the nuts 156 are loosened, theposition of the ear plate 152 may be adjusted along the upper flangemember 148. The aforedescribed yokes 142 and 144 of the A-frame 124 arepivotally secured to the flange member 150 and the ear plate 152,respectively, by means of lock pins 158 and 160.

In mounting the snow moving wing member assembly 14 of the presentinvention to the motor grader 10, the

pitch of the scraper blade 26 is first adjusted to a normal verticalposition and the blade is then positioned on the ground with the rightend forward and to the extreme right position as viewed from theoperators cab 22.

Next, the hinge element 118 is bolted to the back sideof the right endof the scraper blade 26, and the bracket 138 is loosely mounted on theleft end of the circle frame guide tube 76. Thereafter the hinge element116 of the wing member 112 is pivotally connected to the hinge element118 on the scraper blade by means of the hinge pin 122, and the yoke 136of the telescopic brace member 132 is pivotally connected to the bracket138 by means of the lock pin 140. At this time, the yokes 142 and 144 ofthe A-frame 124 are pivotally connected to the flange member 150 and theloosened ear plate 152 r 6 of motor graders. Additionally, the wingmember assembly 14 may be used in conjunction with, or independently of,a conventional front end V-plow such as illustrated at 12 which may beattached to the front end of the motor grader frame structure 16 bymeans of mounting struts 162.

The above-described Wing member 112 is adapted to be used in thefollowing manner in the moving of snow. One of the principal functionsof the wing member 112 is to clear road shoulders of snow so that theroadbed is not softened by melting snow. In this operation, the circleframe 28 and scraper blade 26 are rotated so as to dispose the wingmember 112 at the side of the motor grader 10 in a position extendinggenerally laterally therefrom and more particularly in an angularposition relative to the lengthwise axis of the motor gradersubstantially as shown in FIGURE 1. At the same time, the circle frame28 and scraper blade 26 are vertically adjusted so as to dispose theblade 114 of the wing member 112 substantially at the horizontal levelof the road shoulder. The motor grader 10 is then driven forwardly alongthe right-hand side of the road with the wing member 112 serving to movesnow off of and away from the adjacent right-hand road shoulder. Thus,the wing member 112 is operable to clear road shoulders of snow whilethe motor grader remains on the road surface thereby keeping the graderwheels off of the shoulder and edge of the road and out of ditches.Additionally, when the scraper blade 26 and the wing member 112 areangularly disposed in a V-formation, and the lower edges thereof aresubstantially at the horizontal level of the road, they can togetherserve as a wide V-plow for clearing light accumulations of snow.

Still further, the wing member 112 may be used in cutting back high snowbanks. In this case, the wing member 112 is maintained in an angularposition relative to the lengthwise axis of the motor grader as abovedescribed, and the circle frame 28 and scraper blade 26 are raised tothe highest possible position. If necessary, the circle frame 28 andscraper blade 26 may also be tilted upwardly at the right side thereofthereby angling the outer end of the wing member 112 upwardly. A typicalposition of the wing member 112 for cutting back snow banks is shown inFIGURE 2. While cutting back a snow bank in several passes, the circleframe 28 and scraper blade 26 may be tilted back to the horizontal and/or lowered during successive passes.

When the wing member 112 is used in conjunction with a conventionalfront end V-plow 12, it may, in the manner above described, bepositioned downwardly for clearing road shoulders of snow or be elevatedfor cutting back high snow banks. In either case, the position of thewing member 112 is further adjusted with respect to the front end plow12 so that it will guide and keep moving the snow as it leaves theadjacent side of the plow. Thus snow leaving the plow is deposited bythe wing member 112 at a greater lateral distance from the motor graderthan would otherwise be the case.

The working position of the wing member 112 in the moving of snow isprincipally controlled by the positional adjustments of the circle frame28 and the scraper .blade 26. However, several additional manualadjustments of the wing member 112 may be made. First, the telescopicbrace member 132 may be adjusted lengthwise of the horizontal tubularleg 126 of the A-frame 124 by disengaging the lock pin 134 from oneopening 133 in the brace 132, sliding the brace 132 axially, andreengaging the lock pin 134 in another opening 133 in the brace 132aligned with the set of openings in the horizontal leg 126. By reason ofthe adjustability of the brace 132, the angular position of the wingmember 112 relative to the scraper blade 26 may be varied and hence theWing member 112 may be disposed in any one of a plurality of workingpositions. Also, in one adjusted position of the brace 132, the wingmember 112 is disv a posed within the Width of the motor grader toaccommodate transportation from one location to another. A furtheradjustment in the working position of the wing member 112 may be made byadjusting the pitch of the scraper blade 26. As the pitch of the blade26 is varied from the normal vertical position, the outer end of thewing member 112 is angled up or down from the level of the scraper blade26. When making this adjustment, it is necessary to loosen the U-bolt139 on the circle frame guide tube 76.

While there has been shown and described a preferred embodiment of thepresent invention, it will be under stood by those skilled in the artthat various rearrangements and modifications may be made thereinwithout departing from the spirit and scope of the invention.

I claim:

1. For use with a motor grader having adjustable circle moving wingmember connected at one end to one end of the scraper blade andextending generally laterally from the motor grader at one side thereof,a frame member connected at one end to the back side of said wing memberintermediate of the ends thereof, said frame member having a tubular legportion, a brace member axially slidable in said tubular leg portion ofsaid frame member, means for connecting the outer end of said bracemember to the circle frame means, and means for adjustably locking saidbrace member within said tubular leg portion of said frame memberwhereby the angular position of said wing member relative to the scraperblade may be varied.

2. For use with a motor grader having adjustable circle frame means anda scraper blade carried thereby, a snow moving Wing member connected atone end to one end of the scraper blade and extending generallylaterally from the motor grader at one side thereof, a pair of vertically spaced flange members secured to the back side of said wingmember intermediate of the ends thereof, an ear plate secured to andadjustable along one of said flange members, a frame member connected tosaid ear plate and the other of said flange members, and rigid meansconnecting said frame member to the circle frame means.

3. For use with a motor grader having adjustable circle frame means anda scraper blade carried thereby, a snow moving wing member connected atone end to one end of the scraper blade and extending generallylaterally from the motor grader at one side thereof, a pair ofvertically spaced flange members secured to the back side of said wingmember intermediate of the ends thereof, an ear plate secured to andadjustable along one of said flange members, a frame member connected tosaid ear plate and the other of said flange members, a brace memberconnected at one end to the circle frame means, and means for adjustablylocking the other end of said brace member to said frame member wherebythe angular position of said wing member relative to the scraper blademay be varied.

4. For use with a motor grader having adjustable circle frame means anda scraper blade carried thereby, a snow moving wing member at one sideof the motor grader and extending generally laterally therefrom, a firsthinge element secured to one end of the scraper blade, a second hingeelement secured to one end of said wing member, means forinterconnecting said first and second hinge elements, and brace meansconnected at one end to the back side of said Wing member intermediateof the ends thereof and at the other end to the circle frame means.

5. For use with a motor grader having adjustable circle frame means anda scraper blade carried thereby, a

snow moving wing member at one side of the motor grader and extendinggenerally laterally therefrom, a first hinge element secured to one endof the scraper blade, a second hinge element secured to one end of saidwing member, means for interconnecting said first and second hingeelements, a pair of vertically spaced flange members secured to the backside of said wing member intermediate of the ends thereof, an ear plateconnected to and adjustable along one of said flange members, a framemember connected to said ear plate and the other of said flange members,a brace member connected at one end to the circle frame means, and meansfor adjustably locking the other end of said brace member to said framemember wherely the angular position of said wing member relative to thescraper blade may be varied.

6. For use with a motor grader having adjustable circle frame means anda scraper blade carried thereby, a snow moving wing member connected atone end to one end of the scraper blade and extending generallylaterally from the motor grader at one side thereof, brace meansconnected at one end to the back side of said wing member intermediateof the ends thereof and at the other end to the circle frame means, saidwing member being curved about a lengthwise axis to present a concaveforward surface with the general radius of curvature of the inner end ofsaid wing member being smaller than the general radius of curvature ofthe outer end thereof, and said wing member being formed with upper andlower edges diverging in a direction moving away from the connectionbetween said wing member and the scraper blade.

7. For use with a motor grader having a scraper blade carried by circleframe means adjustable to varying positions, a snow moving wing memberconnected at one end to one end of said scraper blade, brace meansconnected at one end to the back side of said Wing member intermediateof the ends thereof and at the other end to the circle frame means, andsaid scraper blade and wing member being angularly disposed in aV-formation pointing forwardly whereby to serve together as a snow plow.

8. For use with a motor grader having adjustable circle frame means anda scraper blade carried thereby and a front end snow plow, a snow movingwing member connected at one end to one end of the scraper blade andextending generally laterally from the motor grader at one side thereof,brace means connected at one end to the back side of said wing memberintermediate of the ends thereof and at the other end to the circleframe means, and said wing member being positionally adjustable relativeto the front end plow whereby to guide and keep moving snow as it leavesthe adjacent side of the plow.

References Cited by the Examiner UNITED STATES PATENTS 1,701,746 2/1929Cook 37-44 1,782,992 11/1930 Johnson 37-155 1,843,260 2/1932 Arnold etal 37155 1,913,883 6/1933 Hinds 37143 2,138,783 11/1938 Clark et al.37-143 2,195,607 4/1940 Wilson et al. 2,646,633 7/1953 Jahn 37-155FOREIGN PATENTS 378,046 1/1940 Italy. 162,635 3/1958 Sweden.

ABRAHAM G. STONE, Primary Examiner.

WILLIAM A. SMITH III, Assistant Examiner.

8. FOR USE WITH A MOTOR GRADER HAVING ADJUSTABLE CIRCLE FRAME MEANS ANDA SCRAPER BLADE CARRIED THEREBY AND A FRONT END SNOW PLOW, A SNOW MOVINGWING MEMBER CONNECTED AT ONE END TO ONE OF THE SCRAPER BLADE ANDEXTENDING GENERALLY LATERALLY FROM THE MOTOR GRADER AT ONE SIDE THEREOF,BRACE MEANS CONNECTED AT ONE END TO THE BACK SIDE OF SAID WING MEMBERINTERMEDIATE OF THE ENDS THEREOF AND AT THE OTHER END TO THE CIRCLEFRAME MEANS, AND SAID WING MEMBER BEING POSITIONALLY ADJUSTABLE RELATIVETO THE FRONT END PLOW WHEREBY TO GUIDE AND KEEP MOVING SNOW AS IT LEAVESTHE ADJACENT SIDE OF THE PLOW.